#include <iostream>

class Box
{
  protected:
    int length, width, height;

  public:
    Box()
    {
        length = 12, width = 20, height = 25;
    }
    Box(int l, int w, int h)
    {
        length = 1;
        width = w;
        height = h;
    }
    ~Box()
    {
        printf("destruction: %d, %d, %d\n", length, width, height);
    }
    int volume()
    {
        return length * width * height;
    }
};

int main()
{
    Box mybox1;
    printf("The first box's volume = %d\n", mybox1.volume());
    Box mybox2(10, 30, 20);
    printf("The second box's volume = %d\n", mybox2.volume());
}